TheBrain - The average human brain weighs about 1,400 grams...

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The average human brain weighs about 1,400 grams (3 lb). The brain can be divided down the middle lengthwise into two halves called the cerebral hemispheres . Each hemisphere of the cerebral cortex is divided into four lobes by various sulci and gyri ...the sulci (or fissures) are the grooves and the gyri are the "bumps" that can be seen on the surface of the brain. The folding of the cerebral cortex produced by these bumps and grooves increases the amount of cerebral cortex that can fit in the skull. (In fact, the total surface area of the cerebral cortex is about 324 square inches - about the size of a full page of newspaper!). Although most people have the same patterns of gyri and sulci on the cerebral cortex, no two brains are exactly alike. Frontal Lobe Located in front of the central sulcus. Concerned with reasoning, planning, parts of speck and movement (motor cortex), emotions, and problem sol Parietal Lobe Located behind the central sulcus. Concerned with perception of stimuli related to touch, pressure, temperature and pain. Temporal Lobe Located below the lateral fissure. Concerned with perception and recognition of auditory stimuli (hearing) and memory (hippocampus). Occipital Lobe Located at the back of the brain, behind the parietal lobe and temporal lobe. Concerned with many aspects of vision.
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Areas of the Brain Cortical Area Function Prefrontal Cortex Problem Solving, Emotion, Complex Thought Motor Association Cortex Coordination of complex movement Primary Motor Cortex Initiation of voluntary movement
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TheBrain - The average human brain weighs about 1,400 grams...

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